xref: /openbmc/qemu/include/hw/ppc/pnv.h (revision 8f0a3716)
1 /*
2  * QEMU PowerPC PowerNV various definitions
3  *
4  * Copyright (c) 2014-2016 BenH, IBM Corporation.
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 #ifndef _PPC_PNV_H
20 #define _PPC_PNV_H
21 
22 #include "hw/boards.h"
23 #include "hw/sysbus.h"
24 #include "hw/ipmi/ipmi.h"
25 #include "hw/ppc/pnv_lpc.h"
26 #include "hw/ppc/pnv_psi.h"
27 #include "hw/ppc/pnv_occ.h"
28 
29 #define TYPE_PNV_CHIP "pnv-chip"
30 #define PNV_CHIP(obj) OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP)
31 #define PNV_CHIP_CLASS(klass) \
32      OBJECT_CLASS_CHECK(PnvChipClass, (klass), TYPE_PNV_CHIP)
33 #define PNV_CHIP_GET_CLASS(obj) \
34      OBJECT_GET_CLASS(PnvChipClass, (obj), TYPE_PNV_CHIP)
35 
36 typedef enum PnvChipType {
37     PNV_CHIP_POWER8E,     /* AKA Murano (default) */
38     PNV_CHIP_POWER8,      /* AKA Venice */
39     PNV_CHIP_POWER8NVL,   /* AKA Naples */
40     PNV_CHIP_POWER9,      /* AKA Nimbus */
41 } PnvChipType;
42 
43 typedef struct PnvChip {
44     /*< private >*/
45     SysBusDevice parent_obj;
46 
47     /*< public >*/
48     uint32_t     chip_id;
49     uint64_t     ram_start;
50     uint64_t     ram_size;
51 
52     uint32_t     nr_cores;
53     uint64_t     cores_mask;
54     void         *cores;
55 
56     hwaddr       xscom_base;
57     MemoryRegion xscom_mmio;
58     MemoryRegion xscom;
59     AddressSpace xscom_as;
60     MemoryRegion icp_mmio;
61 
62     PnvLpcController lpc;
63     PnvPsi       psi;
64     PnvOCC       occ;
65 } PnvChip;
66 
67 typedef struct PnvChipClass {
68     /*< private >*/
69     SysBusDeviceClass parent_class;
70 
71     /*< public >*/
72     PnvChipType  chip_type;
73     uint64_t     chip_cfam_id;
74     uint64_t     cores_mask;
75 
76     hwaddr       xscom_base;
77 
78     uint32_t (*core_pir)(PnvChip *chip, uint32_t core_id);
79 } PnvChipClass;
80 
81 #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP
82 #define PNV_CHIP_TYPE_NAME(cpu_model) cpu_model PNV_CHIP_TYPE_SUFFIX
83 
84 #define TYPE_PNV_CHIP_POWER8E PNV_CHIP_TYPE_NAME("power8e_v2.1")
85 #define PNV_CHIP_POWER8E(obj) \
86     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8E)
87 
88 #define TYPE_PNV_CHIP_POWER8 PNV_CHIP_TYPE_NAME("power8_v2.0")
89 #define PNV_CHIP_POWER8(obj) \
90     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8)
91 
92 #define TYPE_PNV_CHIP_POWER8NVL PNV_CHIP_TYPE_NAME("power8nvl_v1.0")
93 #define PNV_CHIP_POWER8NVL(obj) \
94     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER8NVL)
95 
96 #define TYPE_PNV_CHIP_POWER9 PNV_CHIP_TYPE_NAME("power9_v2.0")
97 #define PNV_CHIP_POWER9(obj) \
98     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER9)
99 
100 /*
101  * This generates a HW chip id depending on an index, as found on a
102  * two socket system with dual chip modules :
103  *
104  *    0x0, 0x1, 0x10, 0x11
105  *
106  * 4 chips should be the maximum
107  *
108  * TODO: use a machine property to define the chip ids
109  */
110 #define PNV_CHIP_HWID(i) ((((i) & 0x3e) << 3) | ((i) & 0x1))
111 
112 /*
113  * Converts back a HW chip id to an index. This is useful to calculate
114  * the MMIO addresses of some controllers which depend on the chip id.
115  */
116 #define PNV_CHIP_INDEX(chip)                                    \
117     (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3))
118 
119 #define TYPE_PNV_MACHINE       MACHINE_TYPE_NAME("powernv")
120 #define PNV_MACHINE(obj) \
121     OBJECT_CHECK(PnvMachineState, (obj), TYPE_PNV_MACHINE)
122 
123 typedef struct PnvMachineState {
124     /*< private >*/
125     MachineState parent_obj;
126 
127     uint32_t     initrd_base;
128     long         initrd_size;
129 
130     uint32_t     num_chips;
131     PnvChip      **chips;
132 
133     ISABus       *isa_bus;
134     uint32_t     cpld_irqstate;
135 
136     IPMIBmc      *bmc;
137     Notifier     powerdown_notifier;
138 } PnvMachineState;
139 
140 static inline bool pnv_chip_is_power9(const PnvChip *chip)
141 {
142     return PNV_CHIP_GET_CLASS(chip)->chip_type == PNV_CHIP_POWER9;
143 }
144 
145 static inline bool pnv_is_power9(PnvMachineState *pnv)
146 {
147     return pnv_chip_is_power9(pnv->chips[0]);
148 }
149 
150 #define PNV_FDT_ADDR          0x01000000
151 #define PNV_TIMEBASE_FREQ     512000000ULL
152 
153 /*
154  * BMC helpers
155  */
156 void pnv_dt_bmc_sensors(IPMIBmc *bmc, void *fdt);
157 void pnv_bmc_powerdown(IPMIBmc *bmc);
158 
159 /*
160  * POWER8 MMIO base addresses
161  */
162 #define PNV_XSCOM_SIZE        0x800000000ull
163 #define PNV_XSCOM_BASE(chip)                                            \
164     (chip->xscom_base + ((uint64_t)(chip)->chip_id) * PNV_XSCOM_SIZE)
165 
166 /*
167  * XSCOM 0x20109CA defines the ICP BAR:
168  *
169  * 0:29   : bits 14 to 43 of address to define 1 MB region.
170  * 30     : 1 to enable ICP to receive loads/stores against its BAR region
171  * 31:63  : Constant 0
172  *
173  * Usually defined as :
174  *
175  *      0xffffe00200000000 -> 0x0003ffff80000000
176  *      0xffffe00600000000 -> 0x0003ffff80100000
177  *      0xffffe02200000000 -> 0x0003ffff80800000
178  *      0xffffe02600000000 -> 0x0003ffff80900000
179  */
180 #define PNV_ICP_SIZE         0x0000000000100000ull
181 #define PNV_ICP_BASE(chip)                                              \
182     (0x0003ffff80000000ull + (uint64_t) PNV_CHIP_INDEX(chip) * PNV_ICP_SIZE)
183 
184 
185 #define PNV_PSIHB_SIZE       0x0000000000100000ull
186 #define PNV_PSIHB_BASE(chip) \
187     (0x0003fffe80000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * PNV_PSIHB_SIZE)
188 
189 #define PNV_PSIHB_FSP_SIZE   0x0000000100000000ull
190 #define PNV_PSIHB_FSP_BASE(chip) \
191     (0x0003ffe000000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * \
192      PNV_PSIHB_FSP_SIZE)
193 
194 #endif /* _PPC_PNV_H */
195